Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751802Ab2HCGdm (ORCPT ); Fri, 3 Aug 2012 02:33:42 -0400 Received: from alice.et.bocholt.fh-gelsenkirchen.de ([193.175.197.63]:56678 "EHLO alice.et.bocholt.fh-gelsenkirchen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750843Ab2HCGdk (ORCPT ); Fri, 3 Aug 2012 02:33:40 -0400 X-DKIM: Sendmail DKIM Filter v2.8.3 alice.et.bocholt.fh-gelsenkirchen.de q736XNwA008356 From: Dirk Gouders To: Cong Wang Cc: Rob Landley , Milton Miller , Borislav Petkov , Jesse Barnes , Jan Engelhardt , Linux Kernel Subject: Re: [RFC] netconsole.txt: "nc" needs "-p" to specify the listening port In-Reply-To: (Cong Wang's message of "Fri, 3 Aug 2012 13:30:19 +0800") References:

<501937F7.2070600@landley.net> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux) Date: Fri, 03 Aug 2012 08:33:21 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Greylist: Sender succeeded STARTTLS authentication, not delayed by milter-greylist-4.2.3 (alice.et.bocholt.fh-gelsenkirchen.de [192.168.0.63]); Fri, 03 Aug 2012 08:33:24 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2626 Lines: 77 Cong Wang writes: > On Fri, Aug 3, 2012 at 4:39 AM, Dirk Gouders > wrote: >> >> From d756d2750e4cf07d3c0942dc3c491d57631d4338 Mon Sep 17 00:00:00 2001 >> From: Dirk Gouders >> Date: Thu, 2 Aug 2012 22:20:16 +0200 >> Subject: [PATCH] netconsole.txt: revision of examples for the receiver of kernel messages >> >> There are at least 4 implementations of netcat with the BSD-based >> being the only one that has to be used without the -p switch to >> specify the listening port. >> >> Jan Engelhardt suggested to add an example for socat(1). > > > Looks good, but you missed your SOB. Thanks for noticing that, attached is the amended patch. Dirk >From b3aec70d785d338b1b643fece6606cd32addaf0c Mon Sep 17 00:00:00 2001 From: Dirk Gouders Date: Thu, 2 Aug 2012 22:20:16 +0200 Subject: [PATCH] netconsole.txt: revision of examples for the receiver of kernel messages There are at least 4 implementations of netcat with the BSD-based being the only one that has to be used without the -p switch to specify the listening port. Jan Engelhardt suggested to add an example for socat(1). Signed-off-by: Dirk Gouders --- Documentation/networking/netconsole.txt | 19 +++++++++++++++++-- 1 files changed, 17 insertions(+), 2 deletions(-) diff --git a/Documentation/networking/netconsole.txt b/Documentation/networking/netconsole.txt index 8d02207..2e9e0ae2 100644 --- a/Documentation/networking/netconsole.txt +++ b/Documentation/networking/netconsole.txt @@ -51,8 +51,23 @@ Built-in netconsole starts immediately after the TCP stack is initialized and attempts to bring up the supplied dev at the supplied address. -The remote host can run either 'netcat -u -l -p ', -'nc -l -u ' or syslogd. +The remote host has several options to receive the kernel messages, +for example: + +1) syslogd + +2) netcat + + On distributions using a BSD-based netcat version (e.g. Fedora, + openSUSE and Ubuntu) the listening port must be specified without + the -p switch: + + 'nc -u -l -p ' / 'nc -u -l ' or + 'netcat -u -l -p ' / 'netcat -u -l ' + +3) socat + + 'socat udp-recv: -' Dynamic reconfiguration: ======================== -- 1.7.8.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/